CN103556987A - Hydraulic test system of well control device for oil and gas fields - Google Patents
Hydraulic test system of well control device for oil and gas fields Download PDFInfo
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Abstract
A hydraulic test system of a well control device for oil and gas fields comprises a hydraulic test device and a control device of the hydraulic test device. The hydraulic test device comprises a pressure test pump unit, a pressure test flange block board and a pressure release valve, wherein the pressure test pump unit is used for pumping test water into the to-be-tested well control device through a pipeline, the pressure test flange block board is in butt joint with a lower port flange of the to-be-tested well control device and used for entrapping the to-be-tested well control device, so that an enclosure space is formed inside the to-be-tested well control device, and the pressure release valve is used for releasing the hydraulic pressure of the to-be-tested well control device. The hydraulic test system is characterized by further comprising a pressure test flange block board clamping mechanism for clamping the pressure test flange block board and the lower port flange of the to-be-tested well control device and sealing butt joint surfaces of the two flanges; and the control device comprises a water filling pump process control module, a pressure test flange block board clamping mechanism process control module, a water storage tank liquid level control module, a hydraulic oil pressure control module and a pressure release valve process control module. The system is high in automation level and test efficiency, complete in function and capable of meeting test requirements for various wellhead devices and accords with a SY/5053-2000 pressure test standard, the whole test process is remotely operated and monitored, and testers are not required to be on the spot.
Description
Technical field
The present invention relates to oil gas field well control device hydrostatic test system, belong to technical field of measurement and test.
Background technology
In oil gas drilling process, well control device is the critical facility of control well inner high voltage gas stream, is to guarantee that probing and development operation process are able to the important leverage that safety is carried out and implemented smoothly.Well control device refers to implements the required special equipment of Oil/gas Well Pressure Control Technology, the general designation of instrument, take preventer as main.Regulation and stipulation, any well control device, before coming into operation, must carry out the test of strict pressure-bearing and the test of water/gas means of press seals, to guarantee that well control device in actual use can be reliably and control well inner high voltage gas stream effectively, prevents gas blowout accident generation.
At present, the pressure testing system of China's oil gas field well control device is also very simple and crude, exists in following problem:
1, well control device itself does not have self-sealing function, therefore, when well control device is carried out to the hydrostatic test, first will be with pressure testing flange closure plate by the latus rectum sealing of well control device, for trapped pressure provides condition.Before the present invention, pressure testing flange closure plate is to be all connected with bolt with well control device, by hand fills, tears open pressure testing flange, not only complex operation, waste time and energy, also can, because bolt strained inequality does not reach due sealing effect, cause test failure.
2, measuring instrument adopts stem-winder, and accuracy class is low, needs artificial scene to read survey data, has error in reading, and the precision of measured value is low; And reading measured value constantly can only be recorded, continuous measurement parameter cannot be obtained, thereby change procedure that can not reflected measurement parameter, bring difficulty to pressure testing process control.
3, pressure testing water pump comprises the pump of pouring water, Motordriven pressure test pump and pneumatic test pump, first by the pump of pouring water, to tested well control device, poured water, then to tested well control device, supplement hydraulic pressure by Motordriven pressure test pump, when hydraulic pressure approaches test pressure value, change by pneumatic test pump and supplement hydraulic pressure, until reach test pressure value; Because Motordriven pressure test pump is large discharge capacity high-pressure hydraulic pump, the rotating speed control that hydraulic pressure is approached gradually to test pressure value is very difficult, easily occurs superpressure situation, has great potential safety hazard.
4, according to SY/5053-2000 pressure testing standard, to subjects, should be divided into several pressure stages and carry out constant voltage test, i.e. ladder constant pressure pressure testing method, existing pressure testing system can not meet this standard-required.
5, some subjects have hydraulic means, hydraulic blow out preventer for example, while carrying out the hydrostatic test, need to start these hydraulic means, for different subjects, the oil pressure of its hydraulic means may be different, and the hydraulic power source of existing pressure testing system can only provide the oil pressure of a pressure rating, can not meet test needs.
6, existing pressure testing system function singleness, can only test a kind of concrete well control device, there is no versatility, and the kind of well control device is a lot, and as preventer, manifold etc., and same device has again various structures or specification.
7, testing circuit, common analog circuit for control circuit, automatization level is low, test efficiency is low, cannot obtain continuous real-time experimental data curve, also inconvenience show, record and preserving.
8, testing crew need operate and observe pressure testing situation at the scene, is in higher-pressure region, greatly dangerous, does not meet safety requirements.
Twentieth century U.S.'s eighties has developed blowout preventer pressure-testing monitoring system, and this system adopts liquid/gas control clamper to realize the automatic-sealed of preventer and blind plate, thereby has greatly alleviated pressure testing labour intensity, has improved operating efficiency.Pressure testing system adopts primary instrument and function recording instrument to show and records pressure testing result, adopts video camera to carry out telemonitoring to pressure testing process.This pressure testing device and monitoring system have been introduced in the mid-90 in last century in Xinjiang of China oil field, but practical effect is always not ideal for various reasons.The subject matter of its existence is:
1. hydraulic gripper can only be for a kind of blowout preventer pressure-testing of size, and the scope of application is narrow;
2. because directly adopting the primary instrument of single channel, this pressure testing system shows blowout preventer pressure-testing pressure, adopt disc type to have paper recorder to record pressure test pressure, therefore high-voltage power supply need be introduced to consing district, exist certain potential safety hazard, and pressure testing information gathering amount is few, pressure shows and registration accuracy is low, is difficult to meet instructions for use;
3. pressure testing system and pressure testing process still adopt manual control mode, and automaticity is low;
4. pressure testing surveillance adopts fixed focal length B/W camera and the small screen monitor to carry out pressure testing process monitoring, monitors weak effect, is difficult to meet monitoring requirement;
5. pressure testing system cannot complete the functions such as the generation of storage, management and pressure testing result form of pressure testing information and printout.
In addition because the acquisition expenses of this pressure testing system is expensive, spare part lacks, and causes maintenance cost higher.
Summary of the invention
Object of the present invention, it is the shortcoming that overcomes above-mentioned pilot system, a kind of oil gas field well control device hydrostatic test system is provided, the automatization level of this system is high, and test efficiency is high, multiple functional, can meet the test requirements document of various wellhead assemblies, and meet SY/5053-2000 pressure testing standard, and whole process of the test operated from a distance, supervision, testing crew is without at the scene.
Technical scheme of the present invention is:
A well control device hydrostatic test system, comprises water test unit and control device thereof, and described water test unit comprises:
Hydraulic test pump group, for pumping into tested well control device by test water by pipeline, to its pressurising;
Flange closure plate, the end opening flange of corresponding tested well control device with it docking; For the tested well control device of trap, make its inner enclosure space that forms;
Relief valve, for the hydraulic pressure of the tested well control device of removal;
It is characterized in that, also comprise flange closure plate clamper, for flange closure plate and tested well control device end opening flange are clamped, the interface of two flanges is sealed, this clamper comprises the hydraulic cylinder that holds out against of a pair of surge clip and a vertical layout of arranging in opposite directions in the horizontal direction, the described hydraulic cylinder that holds out against is positioned at pressure testing flange closure plate below, its piston head withstands the bottom surface of pressure testing flange closure plate, the described clip that surges is by its Driven by Hydraulic Cylinder, can move in opposite directions or oppositely in the horizontal direction, after clip moves into place in opposite directions, the end opening flange of described tested well control device, pressure testing flange closure plate, hold out against the draw-in groove that hydraulic cylinder is all positioned at clip, by clip, waled, hold out against on the piston head of hydraulic cylinder and push up, the interface top tight sealing of tested well control device end opening flange and flange closure plate.
This system also comprises simulative tube column device, when tested well control device is preventer, with this simulative tube column device, seal the suitable for reading of preventer, described simulative tube column device comprises obstruction, stops up rack winch, rotatable tubing string, on described tubing string, there is a cantilever, the free end of cantilever has pulley, and described obstruction is suspended on pulley by pull rope, by rack winch, obstruction is put or shifted out into the suitable for reading of preventer.
Described hydraulic test pump group comprises the pump of pouring water, Motordriven pressure test pump and pneumatic test pump.
Described control device comprises electrical control gear and hydraulic control device, and described electrical control gear comprises hydraulic test pump group process control module, pressure testing flange closure plate clamper process control module, storage tank liquid level control module, hydraulic fluid pressure control module, relief valve process control module; Described hydraulic test pump group process control module comprises the pump of pouring water, Motordriven pressure test pump, pneumatic test pump job order process submodule, Motordriven pressure test pump rotating speed control submodule.
Described Motordriven pressure test pump rotating speed is controlled submodule and is adopted permanent torque Frequency Converter Control rotating speed, can realize the pressure testing of ladder constant pressure.
Described hydraulic control device has two oil pressure controls, this oil pressure control is by many electro hydraulic valves and plug-in mounting electro-hydraulic proportional valve combination Fa island, Yi Gefa island is for the oil pressure of control flange closure plate clamper oil cylinder, wherein, the control valve of stretch oil cylinder is plug-in mounting electro-hydraulic proportional valve, and the oil pressure of different pressures grade can be provided according to the pressure rating that is subject to electricity testing device; Another valve island is for controlling the oil pressure of preventer oil cylinder, manifold hydraulic pressure gate valve oil cylinder, relief valve oil cylinder, and wherein, the control valve of preventer oil cylinder is plug-in mounting electro-hydraulic proportional valve, and the oil pressure of different pressures grade can be provided according to the pressure rating of preventer oil cylinder.
This system is also furnished with digital signal detection, processing, demonstration, tape deck, and pressure testing process is carried out to Automatic Control, demonstration and record.
This system is also furnished with video monitoring devices, and for realizing telemonitoring, this video monitoring devices comprises multiple cameras and display, and video camera, around tested inlet device, gathers its status signal from multi-angle, for display, shows.
The beneficial effect of native system:
The pressure testing flange closure plate clamping device of native system exploitation, be applicable to the preventer of various sizes, for experiment automatized, lay a good foundation, take the lead in having realized automatic step pressure-measuring method and meet the requirement of SY/5053-2000 standard pressure-measuring method, realized the standard-required of the preventer form experimental technique of permanent hydraulic pressure and permanent hydraulic pressure simultaneously.
The hydraulic controller (valve island) of exploitation, can freely modulate oil supply pressure, has solved remote station and has implemented to control a difficult difficult problem, has met the hydraulic means test requirements document of different pressures grade.Utilize plug-in mounting electro-hydraulic proportional valve, realize the long-range fast stepless modulation of hydraulic control oil pressure, meet different pressure test process and equipment requirement, can do the water pressure resistance performance that different permanent oil pressure are controlled lower pressure testing objects, or the hydraulic control ability of required minimum control oil pressure while testing permanent hydraulic pressure.
First Application of frequency conversion technique is controlled to slowing down under the high pressure conditions of Motordriven pressure test pump in blowout preventer pressure-testing, efficiently solve a difficult problem for electrodynamic pump high voltage control difficulty, use modern most popular method for controlling frequency conversion, solved high hydraulic pressure in the speed governing of permanent torque wide cut, avoid the dangerous phenomenon of superpressure, guaranteed pressure testing process safety.
Realized the instant remote transmission of pressure testing data.Use modern the Internet network technology, realize the real-time Transmission function of pressure testing monitoring image and pressure testing data, curve, supervision can be reached and monitor operation process in good time.Can be sent in theory connection all computers on the internet.
Realized operated from a distance, supervision, testing crew, away from higher-pressure region, meets safety work requirement.
Accompanying drawing explanation
Fig. 1 is pressure testing monitoring system basic control principle figure
Fig. 2 is pressure testing system basic comprising and graph of a relation
Fig. 3 is hydraulic gripper working state schematic representation
Fig. 4 is many steps of frequency converter service diagram
Fig. 5 is that video camera is arranged schematic diagram in pressure testing hole
Fig. 6 is liquid/gas control module basic principle figure
Fig. 7 is data and information acquisition system basic comprising schematic diagram
Fig. 8 is surveillance basic comprising schematic diagram
Fig. 9 is hydraulic control performance element control principle drawing
The specific embodiment
Main research of the present invention
A. the index of well control equipment pressure testing monitoring and automatic data acquisition system general technical is formulated and collectivity Scheme Design.The deficiency and the defect that for current international and domestic similar system, exist, and well control device pressure testing testing goal and content, the technical indicator of design system and the overall plan that realizes index.
B. pressure testing supervision and supervisor control design.The safety of pressure testing process is vital, because not allowing operating personnel, the super-pressure of pressure testing process do not approach, one of this project research purpose is comprehensive, the overall process telemonitoring of design and control, pressure testing process implementation remote visualization is monitored and the record of key image.Guarantee the personal security of pressure testing process.
C. pressure testing and pressure testing object control system design (comprising microcomputer, automatically controlled and wireless remote control control mode).According to pressure testing operating mode and flow process, to the control of pressure testing process and the control of pressure testing object is realized to Intelligentized one-stop and control, apply modern industry control technology and carry out computer management and control.Control approach adopts the seamless switching of multi-method, avoids pressure testing process to interrupt, and guarantees continuity and the reliability of pressure testing process.For different operating modes and control object, can adopt arbitrarily computer control (automatically, manually), automatically controlled and remote control.
D. pressure testing monitoring picture and the real-time dynamic acquisition of pressure testing parameter, transmission and control design.The object that pressure testing detects is to obtain various pressure testing data, the key at design pressure test data acquisition method and collection position is can meet to collect our needed data, and can process and record in good time, meet dynamic auto collection and transmission, meet continuous acquisition under all pressure testing control methods and without the record of losing.
E. electricity/hydraulic control actuator system design.Pressure testing object be by high-pressure fluid medium have control injection tested object sealing cavity volume and keep the stipulated time, check the voltage endurance capability of tested object.
F. each subsystem Integrated design.Each groups of subsystems is synthesized whole monitoring system, make each subsystem mutually the coordinating and unifying automatically lock, need to carry out Integrated design, Integrated design is mainly the design of interface, bus control module and console design.
G. system control and data processing and management software exploitation.For making system realize computer automation, control, must carry out the design of computer control platform software.Controlling software is the soul of whole system.Software can be realized prosthetic intervention and automatically control, and can have again the artificial computer control of manual intervention; Meet automatic data collection and the processing of different operating method, realize remote transmission function.
The key technical indexes
According to the external relevant well control equipment pressure testing monitoring system development and application present situation of Present Domestic, the function that will realize for pressure testing system and specific requirement, take and reach current international most advanced level as target, formulated following well control equipment pressure testing monitoring and the development technical indicator of automatic data acquisition system.
● pressure testing system can carry out efficient remote control to the control objects such as preventer clamping device (oild chuck), preventer system, electricity/pneumatic test pump, liquid/gas control executing agency, video camera Yun Jing and pressure testing process, can meet the pressure detecting operation of various well control equipments and other pressure vessels, pressure testing system advanced technology, system auto-control degree is high, easy to operate;
● pressure testing system can complete remote automatic acquisition, demonstration, record and the storage of various relevant pressure testing information effectively, and wherein the collection of pressure data and processing accuracy are not less than 3.0 ‰;
● it is 150MPa that the maximum water/gas of pressure testing system is pressed pressure test pressure, and maximum hydraulic control oil supply pressure is 30MPa, and maximum gas control bleed pressure is 1.6MPa.The hydraulic test pressure of pressure testing system has the stepless control ability of 0-150MPa, and the hydraulic control oil pressure of pressure testing system has the stepless control ability of 0-30MPa;
● pressure testing system can carry out effective comprehensive telemonitoring and monitor controlling to pressure testing process, and monitoring picture is clear, easy to operate;
● pressure testing system main control software is reasonable in design, and perfect in shape and function, meets Software engineering standard at friendly interface.Can effectively realize control, parameter acquisition, demonstration, Storage and Processing with completion system, and pressure testing information, data and historical management and queried access, pressure testing are detected to the functions such as auto report completing and printout;
● pressure testing system can be realized the telecommunication network real-time Transmission function of pressure testing information;
● pressure testing system reliability is high, extensibility good;
● pressure testing system process control meets industry examination criteria and national pressure vessel examination criteria, and overall performance reaches advanced level.
Main achievement and application changing effect
Main achievement of the present invention is that to succeed in developing a set of current domestic function maximum, the intelligent blowout preventer pressure-testing monitoring and controlling system that automaticity is the highest.This project research process, in strict accordance with design and the contract requirement work that conducts a research, has satisfactorily completed and has designed and contracted task, has obtained multinomial technological innovation and achievement, applies the personal security that has guaranteed pressure testing process by scene.
Modern hydraulic technology and control technology exploitation hydraulic control system (valve island) in system, have been adopted, application built-in industrial control technology development tele-control system, application converter technique development electrodynamic pump speed regulation by constant torque system, application network technology realizes image, remote data transmission system.
Hydraulic control system (valve island)
Due to different pressure testing objects, its pressure testing process is also different to the complexity of pressure oil output parameter request and strict degree.It is to implement for meeting pressure testing object that hydraulic control requires, and reliably providing of output hydraulic pressure oil modulated with effective, makes the hydraulic oil of output meet pressure test process requirement.Current most of similar systems take to use separately remote station or Hydraulic Station, or use Hydraulic Station to add valve group control etc.These hydraulic control systems are difficult to meet hydraulic control requirement, especially can not modulate in time on demand, can not meet by standard the fuel delivery identical with on-the-spot virtual condition is provided; Use separately remote station enforcement remote auto control and modulation very difficult, be difficult to meet in time pressure test process required pressure energy.Two hydraulic controllers (valve island) of the present invention's development, have adopted many heavy caliber electro hydraulic valves, plug-in mounting electro-hydraulic proportional valve to be integrated on valve distributor, and all control and modulation all complete on this hydraulic controller.This hydraulic controller input hydraulic pressure oil can by have the remote station of enough accumulators or have discharge capacity enough large 30MPa with the Hydraulic Station of internal pressure, provide, the operating pressure oil after output multi-channel can be modulated arbitrarily.Two hydraulic controllers (valve island) are respectively used to the oil pressure of hydraulic blow out preventer fluid cylinder and hydraulic pressure clip and control.
Multi-control tele-control system
The multi-control tele-control system of the present invention development has been applied and take the industrial control technology that IPC, PLC and local bus be core, can be by manually automatically controlled, manual calculator is controlled, automatic computing engine is controlled, pressure testing operation control is carried out in remote control; Under different method of operating states, can automatic data acquisition record and process; Can carry out timely remote transmission to pressure testing process video and pressure testing data and curves.
Electrodynamic pump speed regulation by constant torque system
Motordriven pressure test pump is in well control device pressure testing process, the capital equipment of ultra high water pressure is provided, electrodynamic pump can not provide the control device of output pressure and flow, under high pressure conditions, especially approach pressure testing high very dangerous in limited time, if do not lower the danger that flow may be blasted due to pressure limit, this project is for this situation, high in technological content converter technique all the fashion is in recent years introduced in electrodynamic pump control, adopt the permanent torque frequency converter of internationally famous brand EMERSON, enforcement is from zero modulation to rated discharge, especially approach the permanent torque deceleration that pressure testing height is prescribed a time limit, assurance safety effect is fairly obvious.
Development process
Computer System Design
In Computer System Design, use industrial control computer, selected Taiwan to grind Chinese workers and control series, selected the function cards such as many expansion negative, INTER P III CPU module and other I/O, video acquisitions, met data processing needs.
The design of physical quantity data acquisition subsystem
According to general arrangement and the design of system requirements specified data collection point and data acquisition modes design, designed altogether 13 collection points of 3 kinds of data volumes, met the needs of the requirement of pressure testing destination data and systematic procedure TT&C requirement.
Field control subsystem design
Field trial medium RACS comprises hydraulic oil control valve island (oil pressure control), high pressure testing pump pump speed frequency-converting control device, wireless remote control preventer clamper control device, the control device of pouring water, the control design of plug placement control device (fork) Deng22 road.
The design of video data acquiring RACS
The real-time monitoring of 6 tunnel video monitoring system and video data acquiring and record implementation method design, equipment is selected, control methods etc., design the control of Liao30 road, 6 road video data acquirings, 2 road records altogether.
Central control room design
Central control room is away from on-the-spot 40 meters, and control operation platform adopts and controls in the groove form design, elegant in appearance, easy to operate.On panel, subregion arranges whole control buttons, indicator lamp, Displaying Meter and monitor.
Cable mounting design
Control cable in general arrangement requires to adopt field-bus structure, because scene is outdoor at present, the moistureproof difficulty of field module, the design adopts controller-operating desk overall structure, the logic control elements such as PLC controller, relay group all concentrate in console, lengthen work cable, shortened bus.Between computer and PLC, adopt RS232 serial ports to be connected, protected like this field module, but work cable lengthens, increased the complexity of installing and detecting.
Programming
Programming is taked modular construction according to general design requirement, has met the repertoire of imagination, and program adopts VB6.0 and C++ to write, and objective interface is friendly, can carry out self check to system.
System and development
Basic design principle
Take the modern advanced such as automatic control technology, sensor technology and computer technology as basis, development requirement in conjunction with well control equipment pressure testing monitoring and automatic data acquisition system, the basic design principle combining in line with high starting point, high reliability, advance and practicality, makes well control equipment pressure testing monitoring and the automatic data acquisition system developed reach current first-class level.
Overall system design
According to well control equipment pressure testing monitoring and automatic data acquisition system, will complete function and the object reaching, whole pressure testing system should mainly consist of following several parts: several large subsystems such as pressure testing control system, pressure testing data and information acquisition system, pressure testing supervision and supervisor control, hydraulic control executive system, systems soft ware.In the general arrangement of system, integrated application the modern advanced such as automatic control technology, microelectric technique, sensor technology, computer technology and hydraulic control technology, and the application of subsystems and every technology is organically combined as a whole, realized preferably all technical of pressure testing system.
Native system design basic thought
The task that native system design will complete is the telemonitoring of pressure testing process, the pressure testing automatic data collection of pressure testing process and processing, pressure testing process are carried out observing and controlling according to pressure testing object.According to the basic structure of task design system and operating principle; Realize multiple method of operating, meet safety, advance, the economy of automation, intellectuality and the system of system.
The object that system will reach
Native system pressure testing object has been not only the operating pressure pressure testing detection after the maintenance that well control device is general and before using, but to reach following 4 objects: the one, conventional method pressure testing, the 2nd, to carry out the test of preventer sealing performance, switch performance, well pressure-controlled performance, fluid cylinder hydraulic control performance and life tests etc., the 3rd, the resistance to pressure that realize other pressure vessels detects, and the 4th, can carry out image and data and curves remote transmission.
Basic structure and relation
System basic structure
Native system substantially will reach and draft object, meets design philosophy, and its structure is comprised of pressure testing control system, pressure testing data and information acquisition system, pressure testing supervision and supervisor control, hydraulic control executive system, network system, systems soft ware.
A. pressure testing control system is comprised of console, industrial computer system, hydraulic controller (valve island), PLC, frequency converter, bus etc.;
B. pressure testing data and information acquisition system are comprised of pressure sensor, computer, PLC, database;
C. pressure testing supervision and supervisor control are comprised of industrial gamma camera, capture card, The Cloud Terrace, cradle head controllor, four minutes screen controllers etc.;
D. hydraulic control executive system is comprised of hydraulic controller (valve island), electromagnetic switch hydraulic valve, plug-in mounting electro-hydraulic proportional valve, pressure duct, control performer etc.;
F. network system is comprised of the network platform, LAN, remote transmission server software, client software.
Fundamental relation and operating principle
System is mainly divided main control unit, hydraulic control unit, hydraulic pressure control unit, is carried out control module, data acquisition unit, video monitor and control module.Flow process co-ordination by main control unit close-coupled together, is pressed in each unit.Duty in each unit is reflected on master station by various sensors, sends control instruction make performer change duty complete various operations by relay by master station.Pressure testing system operating principle is shown in Fig. 1.
Pressure testing system basic comprising is shown in Fig. 2, in Fig. 2, being subject to electricity testing device is hydraulic blow out preventer 1, on preventer 1 and manifold tube connector, there is hydraulic brake plate valve 11, flange closure plate 2 sealings for the preventer 1 lower flange mouth of pipe, flange closure plate 2 is fixed by hydraulic gripper 3, the suitable for reading of preventer 1 sealed with simulative tube column device 4, by hydraulic test pump group 5, to the inner water-filling of preventer 1, carry out pressure testing, hydraulic test pump group 5 comprises the pump 5.1 of pouring water, Motordriven pressure test pump 5.2, pneumatic test pump 5.3, and pneumatic test pump is furnished with air compressor machine 5.4; The outlet pipeline of pump of pouring water is furnished with ball-and-seat 7, and the supply channel of preventer is furnished with hydraulic pressure releasing valve 6; The oil pressure of hydraulic gripper is controlled by oil pressure control (valve island) 12, and the oil pressure of preventer 1 oil cylinder, slide valve 11 oil cylinders, relief valve 6 oil cylinders is controlled by oil pressure control (valve island) 13.Remote console 8,9 pairs of pressure testing processes of system master platform are controlled, and 10 pairs of testing site situations of monitoring system are monitored.
Main inventive point of the present invention is the improvement to hydraulic gripper 3, its structure and duty are shown in Fig. 3, in Fig. 3, being subject to electricity testing device is hydraulic blow out preventer 1, there is four-way 1.2 and flashboard and drive oil cylinder 1.1, flange closure plate 2 shutoff for the lower flange mouth of pipe of four-way 1.2, flange closure plate 2 is to be fixed by hydraulic gripper 3.
Use simulative tube column device suitable for reading 4 shutoff of preventer.This simulative tube column device 4 comprise stop up 4.5, stop up rack winch (not shown), rotatable its revolution driver of tubing string 4.1(is not shown), on described tubing string, there is a cantilever 4.2, the free end of cantilever has pulley 4.4, described obstruction 4.5 is suspended on pulley 4.4 by pull rope 4.3, by rack winch, by stopping up 4.5, puts or shift out the suitable for reading of preventer into.
Another inventive point of the present invention is the structure design of oil pressure control (valve island) 12,13.By many electro hydraulic valves and plug-in mounting electro-hydraulic proportional valve combination Fa island, valve island 12 is for the oil pressure of control flange closure plate clamper oil cylinder, wherein, the control valve of stretch oil cylinder is plug-in mounting electro-hydraulic proportional valve, and the oil pressure of different pressures grade can be provided according to the pressure rating that is subject to electricity testing device; Valve island 13 is for controlling the oil pressure of preventer oil cylinder, manifold hydraulic pressure gate valve oil cylinder, relief valve oil cylinder, and wherein, the control valve of preventer oil cylinder is plug-in mounting electro-hydraulic proportional valve, and the oil pressure of different pressures grade can be provided according to the pressure rating of preventer oil cylinder.
The rotating speed that an inventive point more of the present invention is Motordriven pressure test pump 5.2 is controlled submodule and is adopted permanent torque Frequency Converter Control rotating speed, can realize the pressure testing of ladder constant pressure.
The 4th inventive point of the present invention is to be furnished with digital signal detection, processing, demonstration, tape deck, and pressure testing process is carried out to Automatic Control, demonstration and record.
The 5th inventive point of the present invention is to be furnished with video monitoring devices, and for realizing telemonitoring, this video monitoring devices comprises multiple cameras and display, and video camera, around tested inlet device, gathers its status signal from multi-angle, for display, shows.
Preventer hydraulic pressure pressure testing operation process has three phases.
A. pressure testing operation preparatory stage.The pressure testing operation preparatory stage is that tested device is installed, fixing, hydraulic pressure clip clamping sealing, and simulation tubing string is lowered to desired depth, water filling, and the electronic three cylinder pump of remote station starts as accumulator punching press simultaneously; This stage, each process can be by straighforward operation.When tested device winches in pressure testing hole, artificial righting is sitting on hydraulic pressure clip, it is upper that hydraulic oil enters clip hydraulic controller (dog valve island), and remote control or console are controlled the action of clip hydraulic controller clamping electromagnetic valve, thereby hydraulic oil enters the clamping oil cylinder clamping preventer flange of clip.Clip is clamped in place sensor and sends the signal that puts in place and make the electromagnetic valve work of taking blame for others, and hydraulic oil enters top blind flange and preventer flange seal on the oil cylinder piston of top.If set the above test pressure of 70MPa, oil pressure enters pressurized cylinder, increases the uplifting pressure of taking blame for others, and meets pressure testing requirement.After the sealing of preventer clamping, tubing string analogue means rotates to preventer top, and simulation tubing string drops to desired location (examination half envelope, this process displacement transducer is determined location status).Start charge pump toward the water filling of pressure testing chamber, after level sensor perception water level puts in place, stop water filling and finish the preparatory stage.
B. pressure testing sessions.Remote station accumulator 21MPa pressure oil enters after blowout preventer hydraulic controller, start electro-hydraulic proportional valve and be modulated to required pressure, start fluid cylinder shut off valve, controlled pressure oil enters preventer and closes oil cylinder, promote oil cylinder piston and close ram block, after flashboard puts in place, starting hydraulic test pump (electrodynamic pump or air driven pump) starts to boost, when boosting to pressure testing design step values, hydraulic test pump quits work and enters the voltage stabilizing stage, pressure data is delivered to computer by pressure sensor through data collecting card and is carried out Storage and Processing, draws pressure-time curve; After the voltage stabilizing time arrives, if restarting hydraulic test pump in allowed band, Pressure Drop boosts, when if Pressure Drop is greater than allowed band, start relief valve pressure release and finish test, when to the frequency converter reduction discharge capacity of adjusting frequency while setting last boost phase, approach gradually the highest pressure testing value, arrive the highest pressure testing value termination of pumping voltage stabilizing.Whole process can the automatic pressure testing of manual intervention or pressure testing completely automatically, also artificial electric operating.
C. pressure testing ending phase.Normal pressure testing, after maximum pressure voltage stabilizing, starts relief valve and releases hydraulic pressure, opens ram block, and row's keyholed back plate road binders is pressed, and trips out simulation tubing string, the playback of tubing string analogue means, and the decline of taking blame for others, opens clip, hangs out preventer and finishes pressure testing all processes.Simultaneous computer is processed pressure testing data, prints test report and pressure testing record.
Control device development
Control device is for carrying out and complete the core of work pressure test, directly has influence on the overall performance of pressure testing system.The work that will complete according to pressure testing system, can be divided into following four major parts by the type of control object, amounts to 52 road action controls.
Preventer clamping device (oild chuck) is controlled
For realizing blowout preventer pressure-testing process mechanism, automation, alleviate working strength, key is to solve the shutoff of pressure testing process to the main channel of preventer, coordinate with flashboard, make it to become sealing chamber, use preventer clamping device (oild chuck) can complete automatic clamping and the sealing between preventer assembly and blank flange, supporting tubing string analogue means can be sent simulation tubing string into precalculated position automatically with it simultaneously.Preventer clamping device (oild chuck) is hydraulic-driven, to selecting preventer clamping device (oild chuck) and supporting tubing string analogue means to implement control, be the key of implementation procedure automation, its action is divided into the up/down of taking blame for others and moves control, clip and clamp/unclamp put in place rotation and the obstruction of control, take blame for others pressurization control and tubing string analogue means of control, clip and move up and down control.For the better needs that adapt to Future Development, in native system, pre-seted respectively two and overlapped independently preventer clamping device (oild chuck) control system simultaneously, can complete altogether wherein 9 road fluid cylinder No. one fluid motors of 10 road action controls.Can carry out visual operation and the operation of on-the-spot hand-held remote control.This partial design hydraulic controller independently, enforcement is to the clamping of preventer clamping device (oild chuck) and loosen, taking blame for others moves up and down and pressurization control, adopt 2 displacement transducers to detect clip motion conditions, 1 digital coding disk detects the position of transferring of simulation tubing string.
Preventer system is controlled
Conventionally well control device pressure testing has four kinds of objects; The one, detect the resistance to oil pressure capacity, the 2nd that tested object is controlled executing agency, detect the main cavity volume water pressure resistance ability of tested object; The 3rd, evaluate the control ability of tested object to pressure, as preventer is controlled the highest seepage hydraulic pressure of lower flashboard or the minimum control oil pressure needing under the permanent hydraulic pressure of difference and the useful life longevity of tested object at the permanent oil pressure of difference.The 4th, tested object is carried out to high pressure burst test, detect the uprising ability of preventer.General preventer overhauls unit and does not carry out the 4th kind of experiment.The water pressure resistance of tested object being detected and conventionally adopts Motordriven pressure test pump or pneumatic test pump, make high-pressure fluid medium controlled, is exactly in fact the control to high pressure testing pump, is mainly that the switch of pump is controlled and displacement control.It is mainly to detect sealing and hydraulic power ability, actuation time, resistance to pressure etc. that the oil pressure of tested object is detected.During detection, need to oil sources be modulated and be controlled, to the modulation of oil pressure and control more complicated, the one, modulate as required oil pressure, the 2nd, to the switching of output hydraulic pressure oil and emptying control.Because whole pressure testing process (comprising hydraulic pressure and oil pressure) need to be sealed and control and clamping control tested object (preventer), control object is many, unit interval traffic requirement is strict, therefore need to oil sources be modulated and be distributed, general Hydraulic Station can not meet, existing remote console implements to control difficulty, and therefore need to develop a kind of device that can conveniently control and modulate meets pressure testing process manipulation request.
During pressure testing, to the control object of preventer device, be preventer to be carried out the control of switch motion and state in pressure testing process.In this pressure testing system, be provided with two independently blowout preventer hydraulic control channel for controlling the action of preventer.The control that ON/OFF comprising each passage preventer is controlled, the oil pocket of blowout preventer hydraulic manifold unloads pressure-controlled and four-way hydraulic operated valve, amounts to 6 road action controls.This part has designed a hydraulic controller, and this controller has designed a plug-in mounting liquid electricity pressure regulation proportioning valve and carried out stepless modulation to entering the hydraulic oil of preventer fluid cylinder, meets different pressure testing objects.Simultaneously this part has designed a road binders control hydraulic pressure discharge mechanism, can after pressure testing completes, to the high-pressure chamber of tested object, implement safety automation release, and forces release to guarantee safety while there is emergency in pressure testing process.
15 tunnels described above are controlled and all at two hydraulic controllers (valve island), are controlled.
Pressure testing equipment and servicing unit are controlled
Pressure testing equipment is mainly Motordriven pressure test pump and pneumatic test pump, control to pressure testing equipment and device, object is according to pressure testing object and requirement in pressure testing process, the difference of pressure testing object and need different pressure test pressures, flow velocity, process step etc. is controlled, this part is controlled and is adopted in recent years popular variable frequency control Motordriven pressure test pump, select the permanent torque frequency converter of EV2000-4T0075G of internationally famous brand EMERSON, guarantee that height forces down flow pump power constant, under low flow velocity, approach gradually high test pressures, avoid superpressure to cause overvoltage to damage tested device and sensor, design has simultaneously adopted series connection electro connecting pressure gauge again to carry out overload protection.This frequency converter can be realized the many steps of rotating speed by setting and move, as shown in Figure 4.
Control for pneumatic test pump adopts electromagnetic gas valve, by program, is realized automatically and is controlled and meet step pressure testing.Control relevant pressure testing auxiliary equipment and the action of device, comprising the pour water control of pump, the water level of pouring water of low pressure, control.
In the pressure testing preparatory stage, to tested device intra-bladder instillation test medium, object is the gas in emptying tested cavity, controls groundwater increment after starting the pump of pouring water by level sensor, guarantees can not overflow draining under the prerequisite of air.
It is in parallel that charge pump and pressure testing pipeline are isolated by high-voltage one-way valve, simplifies the internal structure of an organization and meet the demands.This part total Motordriven pressure test pump and pneumatic test pump are controlled, low pressure is poured water the control of pump, the water level of pouring water is controlled and the control of frequency converter and proportional dump valve, amount to 6 road action controls.
In this part control, the control of hydraulic discharging pressure valve is to control at hydraulic controller, and other controls are electromagnetic valve, starter and Frequency Converter Control.
Surveillance is controlled
Surveillance is controlled and is comprised video monitor control, Stateful Inspection control etc., and the telemonitoring of design pressure testing process is to control requirement according to the safety requirements of pressure testing process and work smoothness.
Video monitor design is main considers that pressure testing process pressure testing main body is to carry out in pressure testing hole, preventer combination height (containing preventer clamper) 2.5m-4.6m, pressure testing process need monitors the longitudinal of whole pressure testing combination and the circumferential any part of 360 degree, therefore circumferentially design the leakage situation (see figure 5) of using 4 industrial gamma camera picket surveillance tested devices, longitudinally in top design, use a spherical industrial gamma camera of overhead to monitor the situations such as top leakage situation and water level, simulation tubing string; In hydraulic test pump, remote station, designing one nearby monitors hydraulic test pump, remote station working condition and monitors pressure testing zone state.The colored industrial camera of 6 23 times of zooms arranging in this pressure testing system has been realized the picket surveillance of pressure testing process.For reaching the object of picket surveillance, each video camera is equipped with independently cloud mirror control module.Rotation and the pitch control subsystem of control, The Cloud Terrace are set comprising video camera zoom, aperture and parameter, amount to 30 road action controls.
It is to monitor in pressure testing process the running status of each system, parameter variation etc. monitor that Stateful Inspection is controlled object, guarantees the operation of whole system security coordination.Stateful Inspection is by detection, show states such as various sensors, instrument, indicator lamp, monitors, by switch, computer, PLC and performer, controls controll plant.
Control technology feature
Whole control system detects quality in order to guarantee pressure testing, improves pressure testing system overall technology level, and in the design and development process of pressure testing control system, the control mode and the technical characterstic that adopt are as follows:
Adopted and take the main control unit that industrial control microcomputer and PLC logic programming controller be core and local bus architecture control mode.Thereby greatly improved the reliability of system works, there is system compatibility good, the feature that extensibility is strong.
Be provided with two covers and can distinguish the control system of independent operating, be microcomputer pressure testing control system and automatically controlled pressure testing control system, two cover systems are all with a complete set of Control Component and display parameters instrument, adopt the parallel interlocking method of operation to carry out work, operator can select corresponding operating system and control mode according to the hobby of oneself.When wherein arbitrary cover control system breaks down because of certain reason, switch to another set of control system and continued whole work pressure test simultaneously.In addition in order to facilitate the lifting operation of preventer, be also provided with separately a set of wireless remote-control system and for operating personnel, the execute-in-place of hydraulic gripper and tubing string analogue means controlled.Thereby reliability, compliance and the operability of pressure testing control system are greatly improved.
Applied frequency converter and proportional dump valve and realized the step-less adjustment control to Motordriven pressure test pump pump speed in pressure testing process, and the step-less adjustment of hydraulic control oil supply pressure has been controlled.Thereby make the range of application of pressure testing system and pressure testing ability obtain very big enhancing.
Pressure testing system main control microcomputer has adopted major and minor screen double screen to show and control mode.Wherein, main screen is controlled for the setting of pressure testing parameter and the operation of pressure testing process; Secondary screen is for demonstration and the record controls of pressure testing monitoring picture information, and the demonstration of pressure testing curve and record controls.Between major and minor screen, adopt seamless link, can mutually carry out switching controls, thereby pressure testing process control function and the pressure testing information capacity of display are greatly improved.
Control System of Microcomputer is provided with respectively " automatically " and " manually " pressure testing control mode, thereby compliance and flexibility that pressure testing is controlled are improved.Simultaneity factor is controlled and has also been adopted the function such as power-off security protection and electric shock security protection in logic control, action interlocking and self-locking, pressure testing process, has strengthened pressure testing safety.
Development of Data Acquisition
Pressure testing data and information acquisition system are the important component parts of well control equipment pressure testing system, are the nerve centers of pressure testing system.In pressure testing process, collection, demonstration and the feedback of relevant pressure testing data and information, be the Main Basis of implementation system Long-distance Control, is also the important evidence so as to judgement and judge pressure testing object detection result.High reliability and high accuracy are the basic demands to this system.According to the testing requirement of pressure testing system and the work that will complete, need the signal gathering to comprise pressure signal, displacement signal, position signalling and vision signal.By the type of signal source, can be divided into again analog signal, numerical signal and switching value signal etc.In order to realize corresponding function, this part system multiple sensors, D/A and mould/number conversion module, signal show and memory cell etc.This unit is that the quality designing and producing directly has influence on the overall performance of pressure testing system for carrying out and complete the core of work pressure test.The collection of whole system signal designs Liao18 road altogether, comprising:
Pressure signal sampling and processing
The pressure signal of pressure testing system amounts to 9 tunnels, comprising: each preventer opening/closing cavity pressure each 1 tunnel (oil pressure) of totally 5 tunnels (oil pressure), hydraulic control system oil supply pressure and operating pressure, air supply system pressure (air pressure), water/gas pressure test pressure (gas, hydraulic pressure), hydraulic gripper oil pressure (oil pressure) of taking blame for others.System has adopted the high-precision pressure sensor of 9 0.25 grade to gather pressure signal, delivers to corresponding demonstration and main control unit after digital-to-analogue conversion, and auxiliary completion system is controlled automatically.Native system has adopted PLC program logic controller to complete the functions such as automatic collection, analog-to-digital conversion and processing of pressure signal, has the advantages that precision is high, reliability is high.In 9 road pressure signal sensors, 7 oil pressure sensors are arranged on oil pressure control (valve island) above, and a hydraulic pressure sensor is arranged in hydraulic test pump group, and a baroceptor is arranged on the air pump air source inlet of hydraulic test pump group, sees Fig. 6.
Displacement signal sampling and processing
For accurately controlling the position of simulating tubing string in pressure testing tubing string analogue means, design has adopted high-precision digital coding disk to measure the angular displacement of elevator, by single-chip microcomputer and charactron, complete conversion and the display simulation tubing string lifting position of angular displacement and linear displacement signal, it is measured and display precision reaches grade.Former design is installed to digital coding disk on cantilever front end pulley spindle, considers that steel cable and pulley may have slippage to affect certainty of measurement, and decision will be installed in main shaft of hoister.
Position signal acquisition and processing
The clamping position of hydraulic blow out preventer clamper chuck is very important, only be clamped in place the action of just taking blame for others, otherwise the major accident of preventer slippage will be caused, therefore on clamping oil cylinder, adopted 2 waterproof inductive position sensors measure the position of preventer clamper and provide the signal that puts in place, to adapt to the clamping requirement that puts in place that detects different size preventer.Adopt level sensor to measure and control the water filling liquid level in preparatory stage preventer in pressure testing process simultaneously.
Video signal collective and processing
Adopt Audio and Video Processing Card and main control microcomputer to complete collection, image demonstration, processing and the compression storage etc. that 6 tunnels come to the vision signal of video camera.
The basic comprising of pressure testing data and information acquisition system and principle are as shown in Figure 7.
Monitoring system
In order to monitor pressure testing operation process field condition comprehensively, having adopted the high-definition color industrial camera, two 21 of six 23 Zoom Lens " colour picture monitor and video camera and cradle head controllor, image segmentating device etc. realize the comprehensive remote monitoring to pressure testing scene and process; the control of each colored industrial camera and The Cloud Terrace thereof, is realized by cloud mirror controller and frequency divider.Cloud mirror controller and frequency divider are arranged on master station, and four in six video cameras are arranged in pressure testing hole surrounding, and an overhead is arranged on tubing string analogue means, and one is arranged on remote console place.The many picture displies for monitoring picture in two monitors, another amplifies and shows for Picture switch.Pressure testing monitoring image can carry out Real Time Compression storage and playback by video frequency collection card and microcomputer.By frequency divider and monitor, coordinate, can on master monitor, with the form of four pictures, show the camera signal of four passages, and can on auxiliary monitor, show the signal of one of them passage.By frequency divider signalling channel, select, can on auxiliary monitor, show respectively the signal of 1～4 passage or with the form of four pictures, show the camera signal of four passages, other two-path video signals utilize two toggle switchs of frequency divider to carry out signal to switch the Alternation Display that realizes 6 road signals.Native system cradle head control can be set automatic rocking-turn, can monitor the scenes such as scene, ground and hydraulic test pump and can monitor that whole pressure testing district has or not personnel to enter, and guarantee safety work, the basic comprising principle of monitoring system as shown in Figure 8.
Hydraulic control executive system
Because preventer and preventer clamper all adopt hydraulic driving mode, general hydraulic control system is difficult to meet hydraulic control requirement, especially can not modulate in time on demand, can not meet by standard the fuel delivery with on-the-spot virtual condition is provided; Use separately remote station to implement remote auto and control and modulate the very difficult pressure test process required pressure energy that is difficult to meet in time.Therefore need to configure the action that corresponding hydraulic control performance element is controlled preventer and preventer clamper in pressure testing system, this project has been developed two hydraulic controllers (valve island), adopt many heavy caliber electro hydraulic valves, plug-in mounting electro-hydraulic proportional valve to be integrated on valve distributor, all control and modulation all complete on this hydraulic controller.This hydraulic controller grinds Yuci, Shanxi factory by Japanese oil and processes, its input hydraulic pressure oil can by have the remote station of enough accumulators or have discharge capacity enough large 30MPa with the Hydraulic Station of internal pressure, provide, the operating pressure oil after output multi-channel can be modulated arbitrarily.Hydraulic control performance element is mainly comprised of electricity/hydraulic control valve group, and its basic comprising and control principle are as shown in Figure 9.
System is controlled and management software
System control and management software is to guarantee that whole well control equipment pressure testing monitoring and data collecting system are able to the key point of trouble-free operation.Designed and produced the whole control designs of standard industry control operation platform on central control console, control operation can all complete on central control console.Basic controlling is divided into automatically controlled and machine control, and auxiliary control can be carried out wireless remote control, can be by computer to data acquisition, preservation and processing for meeting any control.Design adopts automatically controlled mode and computer control integrated panel, has designed various parameter instrumentation, indicator lamp display working condition on guidance panel, shows work pressure test state, has designed various switch knobs in order to control all control objects on panel.For guaranteeing safety, at each way control switch, interlock circuit is set, step switch can be interlocked or self-locking effectively, avoid faulty operation.For realizing automatic operation, implement computer control, designed two kinds of control models, simulate manual and control without intervening automatically.Like this, while operating on computer control interface, can select manually to control or automatic control mode, the simulation knob that manual mode is clicked on interface according to pressure testing designing requirement immediately by operating personnel carries out, automatic mode by operating personnel's setup parameter after, transfer to computer automatically to complete and do not need manual intervention.Because electrodynamic pump is by Frequency Converter Control, Frequency Converter Control requires to move too much start-stop and controls, so automatic mode is only suitable for oil test or pneumatic test pump pressure testing.
Computer control needs software support, and the control application software running environment of developing in native system is windows platform, adopts VB and C language to carry out system master program development, adopts Access to carry out the exploitation of systems management data storehouse.It is multiple functional to pressure testing report generation and printout etc. from system control, data and information gathering, parameter display, pressure testing information processing and management that the exploitation of systems soft ware has made well control equipment pressure testing monitoring and data collecting system round Realization.Systems soft ware adopts structured programming mode, and multiple functional, friendly interface, workable, meets Software engineering standard.
Software configuration is main program additional examination pressure-controlled operational module, display module, data management module, database maintenance module, tool model and 5 main functional modules of System self-test module and other functional modules.There is good routine interface, can articulate other application programs.Software adopts the upper, tool hurdle, ，Zhu interface, interface of popular Windows style to be provided with 6 drop-down menus and second-level menu.By choice menus, carry out parameter setting and operation selection.
The pressure testing collecting is crossed to data, be divided into process data and target data, the status data that process data is system requirements in pressure testing process, control for system, process data is not preserved.Target data is that result data and the related data of pressure testing must be preserved continuously.Software for Design takes into full account and makes data better authenticity, and taking data acquisition and intra-record slack byte is 0.5 second, has guaranteed authenticity and the continuity of pressure testing data, does not lose important accidental data, for judging that the performance of tested device lays the foundation.Design of System Software has also been considered the application of data and has been shared, has been convenient to calling and analyzing historical data, be designed with data query module, transport module and print module, can consult, print and transmit for user, simultaneously to the printable Chinese and English pressure testing report of pressure testing result.
Claims (8)
1. an oil gas field well control device hydrostatic test system, comprises water test unit and control device thereof, and described water test unit comprises:
Hydraulic test pump group, for pumping into tested well control device by test water by pipeline, to its pressurising;
Flange closure plate, the end opening flange of corresponding tested well control device with it docking; For the tested well control device of trap, make its inner enclosure space that forms;
Relief valve, for the hydraulic pressure of the tested well control device of removal;
It is characterized in that, also comprise flange closure plate clamper, for flange closure plate and tested well control device end opening flange are clamped, the interface of two flanges is sealed, this clamper comprises the hydraulic cylinder that holds out against of a pair of surge clip and a vertical layout of arranging in opposite directions in the horizontal direction, the described hydraulic cylinder that holds out against is positioned at pressure testing flange closure plate below, its piston head withstands the bottom surface of pressure testing flange closure plate, the described clip that surges is by its Driven by Hydraulic Cylinder, can move in opposite directions or oppositely in the horizontal direction, after clip moves into place in opposite directions, the end opening flange of described tested well control device, pressure testing flange closure plate, hold out against the draw-in groove that hydraulic cylinder is all positioned at clip, by clip, waled, hold out against on the piston head of hydraulic cylinder and push up, the interface top tight sealing of tested well control device end opening flange and flange closure plate.
2. oil gas field well control device hydrostatic test system as claimed in claim 1, it is characterized in that, this system also comprises simulative tube column device, when tested well control device is preventer, with this simulative tube column device, seal the suitable for reading of preventer, described simulative tube column device comprises obstruction, stops up rack winch, rotatable tubing string, on described tubing string, there is a cantilever, the free end of cantilever has pulley, described obstruction is suspended on pulley by pull rope, by rack winch, obstruction is put or shifted out into the suitable for reading of preventer.
3. oil gas field well control device hydrostatic test system as claimed in claim 1, is characterized in that, described hydraulic test pump group comprises the pump of pouring water, Motordriven pressure test pump and pneumatic test pump.
4. oil gas field well control device hydrostatic test system as claimed in claim 1, it is characterized in that, described control device comprises electrical control gear and hydraulic control device, and described electrical control gear comprises hydraulic test pump group process control module, pressure testing flange closure plate clamper process control module, storage tank liquid level control module, hydraulic fluid pressure control module, relief valve process control module; Described hydraulic test pump group process control module comprises the pump of pouring water, Motordriven pressure test pump, pneumatic test pump job order process submodule, Motordriven pressure test pump rotating speed control submodule.
5. oil gas field well control device hydrostatic test system as claimed in claim 4, is characterized in that, described Motordriven pressure test pump rotating speed is controlled submodule and adopted permanent torque Frequency Converter Control rotating speed, can realize the pressure testing of ladder constant pressure.
6. oil gas field well control device hydrostatic test system as claimed in claim 4, it is characterized in that, described hydraulic control device has two oil pressure controls, this oil pressure control is by many electro hydraulic valves and plug-in mounting electro-hydraulic proportional valve combination Fa island, Yi Gefa island is for the oil pressure of control flange closure plate clamper oil cylinder, wherein, the control valve of stretch oil cylinder is plug-in mounting electro-hydraulic proportional valve, and the oil pressure of different pressures grade can be provided according to the pressure rating that is subject to electricity testing device; Another valve island is for controlling the oil pressure of preventer oil cylinder, manifold hydraulic pressure gate valve oil cylinder, relief valve oil cylinder, and wherein, the control valve of preventer oil cylinder is plug-in mounting electro-hydraulic proportional valve, and the oil pressure of different pressures grade can be provided according to the pressure rating of preventer oil cylinder.
7. oil gas field well control device hydrostatic test system as claimed in claim 1, is characterized in that, this system is also furnished with digital signal detection, processing, demonstration, tape deck, and pressure testing process is carried out to Automatic Control, demonstration and record.
8. oil gas field well control device hydrostatic test system as claimed in claim 8, it is characterized in that, this system is also furnished with video monitoring devices, be used for realizing telemonitoring, this video monitoring devices comprises multiple cameras and display, video camera, around tested inlet device, gathers its status signal from multi-angle, for display, shows.
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| CN110328153B (en) * | 2019-04-24 | 2024-01-26 | 沈阳鑫博立恩石油钻探设备制造有限公司 | Multi-station internal blowout prevention tool pressure testing device for petroleum drilling |
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| CN113738339B (en) * | 2020-06-17 | 2024-01-30 | 中国石油天然气股份有限公司 | Control method and device for wellhead blowout system in oilfield operation |
| CN113738339A (en) * | 2020-06-17 | 2021-12-03 | 中国石油天然气股份有限公司 | Control method and device for wellhead blowout making system in oilfield operation |
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| CN112665993A (en) * | 2020-12-17 | 2021-04-16 | 湖州市特种设备检测研究院 | Automatic control device and method for hydrostatic test |
| CN113758698B (en) * | 2021-09-22 | 2023-12-22 | 北京捷杰西科技股份有限公司 | IBOP test device and test method thereof |
| CN113758698A (en) * | 2021-09-22 | 2021-12-07 | 北京捷杰西石油设备有限公司 | IBOP test device and test method thereof |
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Application publication date: 20140205 |